Yarn reel, more particularly for the winding of freshly-spun artificial silk



Nov. 20, 192& 1,692,415

K. MEYER-GAUS YARN REEL, MORE PARTICULARLY FOR THE WINDING OF FRESHLY SPUN ARTIFICIAL SILK Filed Oct. 1, 1926 I 1 KARL MEYER-614115 Patented Nov. 20, 1928.

UNITED STATES 1,692,415 PATENT OFF-ICE.

n31. MEYER-GAUS, or BARMEN, GERMANY, ASSIGNOR 'ro amnmcan Bananas coa- PORATION, or NEW YORK, N. Y.

YARN REEL, KORE PARTICULARLY FOR THE WINDING F FRESHLY-SPUN ARTIFICIAL I SILK.

Application filed October 1, 1926, Serial No 138 962, and in Germany October 3, 1925.

. Freshly spun artificial silk has hitherto been wound on to bobbins, rollers and reels. The reels havethe great advantage of delivering the artificial silk directly in the form of skeins, which is an important advantage for the further treatment ofthe silk. Un-

- fortunatel reels are subject to a serious ob- -'ection. 'l he silk that is wound is wet and ighly tensioned so that it cannot be stripped off as a hank without damaging. Reels have therefore been made which permit of a reduction of their periphery for the purpose of enabling the relaxed skein to be subsequently removed. The reduction in the circumference of the reel has been obtained by cross beams movable in various ways.

One construction is such that one or more cross beams are provided with pivoted spokes, so that a displacement of the cross beams parallel to the longitudinal axis is made possible. In use the movable spokes are fixed perpendicular to the axis b means of a spring or the like. This reel owever still exhibits the disadvantage of causing damage to the silk. This arises from the fact that the silk is under strong tension and therefore, when the spokes of the cross.

bars are folded back, is initially always in contact, and is thus rubbed sideways.

friction. In this case the circumference of the reel is diminished by one or more cross bars being so arranged as to be rotatable about the axis in the peripheral direction of the reel, and, in use, to be fixed in their position by a spring for example. Even in the case ofthis construction, however, no instantaneous relaxation of the silk is obtained when collapsing. Here again friction occurs which acts indeed in the longitudinal direction of the silk but may still also lead to breakage of the threads. 7

A collapsing of the reel without rubbing the silk is obtained by another construction.-

In the case of the latter, one or .more cross beams are movable in a radial direction along their stationary spokes, struts pivotally connected with the cross beams being so arranged .as to be slidable by means of bushes on the shaft. Rails or resilient snap devices hold the cross beams in the struttedposition. This construction obviates all friction and damage to the artificial silk during collapsing and Another construction obviates this lateral.

- ing drawings:

thus completely fulfils the requirements from this point of view.

Nevertheless this construction of the reel could not be introduced into the cupramlnonium silk industry. In this industry filaments saturated with sulphuric acid and copper sulphate solution have to be wound as a result of which the \reel becomes unusable. within a short time, whether it is made of wood, which quickly rots, or whether it is made of metal, in which case at least the sensitive parts, such as springs and joints, rapidly become corroded. The employment of acid proof steel, has not come into question, for these materials are very diflicult to work. Thus for example the fixing devices make theconstruction described, which moreover is already not simple, very complicated, and thoroughly unsuitable for being made from acid-proof steel.

Now the applicant has discovered a different construction of reel, which combines the advantages of the last mentioned with simplicity, so that the reel can advantageous-- 1y be made of acid proof steel plates. One or more cross bars are in this case slidable in a radial direction along the spokes and thus relax the tension of the skein of silk without any rubbing. Thecross bars-are pivotally secured with struts to the shaft itself. The latter is slidably fitted into a box-shaped frame, which is formed from the stationary spokes and cross bars. The bushes slidable along a stationary shaft are thus omitted in this construction. In the strutted position the shaft touches. on the strut joints, the two spiders, and in this position can be held fast in the simplest manner by a bar.

The method of constructing the apparatus forming the subject-matter of the present invention may be seen from the accompanye 05 Fig. 1 and Fig. 5 show one constructional form of the reel in a strutted position in cross section and longitudinal section respectively.

Fig. 2 and Fig. 6 show the same reel in a collapsed condition.

Figs. 3, 4, 7 and 8 show a modification. The cross bars a, b, d and e are connected with the spiders h to form a rigid box-shaped frame. In this frame a shaft i of the reel/is so arranged so as to be slidable in a longitudinal direction through the spiders h. With the shaft 2' are pivotally connected the two cross bars 0 and'f by means of the four stays 9, so that by c, 2', f and the four stays g slidable parallelograms are formed. The pivotal connections of the stays g to the shaft 2' and the cross bars 0 are denoted by m and n respectively. In the two spiders h are guided the two cross bars 0 and f in such a Way that movements in the longitudinal direction are not possible, while movements in a radial direction are possible. This guide may be of any desired form. To show what may be done lugs 1" are provided on the bars cand f.

Now if the shaft i and the box-shaped frame are displaced relatively to one another the pivoted stays g pull the two cross bars 0 and f radially together (Fig. 2) or press w them apart (Fig. 1). Owing to the purely radial movement of the cross bars and the avoidance of any lateral movement, no sort of dragging occurs in the reeled silk skeins. In the strutted position the shaft is held fast with the stays by a lock K, which can rotateon the pivot Z on the shaft 71.

The cross bars may also be held fast in the strutted position in another way, for example by the stays in this position not being exactly radial in direction, but deflected somewhat beyond the dead centre position, until the joint mounted on the pivot comes into contact with the box-shaped frame formed by the fixed cross bars and spokes. The holding is obtained by the tension in the silk; in this way no fixing device is neces sary. By this means the manufacture is specially simplified and the employment of acid proof steel facilitated.

This form of the reel is illustrated in Figs. 3 and 'Z and 4 and 8. In the displayed or strut-ted end position two opposite stays 9 do not form a straight line, but are bent a little away beyond the straight linelt- (Fig. 7') whereby an undesired dropping of the cross bars 0 and f back into the collapsed end position (Figs. 4 and 8) during the reeling of the artificial silk is obviated, as the tension in the reeled artificial silk makes a buckling of the stays g impossible. When collapsing,

the stays g, against the pull of the artificial silk, are bent beyond. the straight line is,

whereupon the reel collapses.

I claim:

1. A reel comprising spiders, cross bars fixed to said spiders, cross bars mounted in said spiders and shiftable radially only therein, a shaft axially movable in said spiders, and toggle joints intermediate said shiftable cross bars and shaft.

2. A reel comprising spiders, cross bars fixed to said spiders, cross bars mounted in said spiders and shiftable radially only therein, a shaft axially movable in said spiders, toggle joints intermediate said shiftable cross bars and shaft. and means to arrest said shaft in the position in which the toggle joints are stretched.

3. A reel comprising in combination a shaft, a pair of parallel spiders non-rotatably mounted on said shaft, a plurality of parallel cross-bars mounted in said spiders, one of said cross-bars being movable radially only in said spiders, parallel links pivoted at their inner ends to said shaft and at their outer ends to said movable crossbar, said shaft being'arranged to move in one direction to draw said movable cross-bar radially inward and in the opposite direction to move said movable cross-bar radially outward, substantially as described.

4. A reel comprising in combination, a shaft, a pair of spiders non-rotatably mounted on said shaft, cross-bars mounted in said spiders to form a reel, two opposite crossbars being movable radially only in said spiders, two pairs of parallel links connected to said movable cross-bars and to said shaft to form a toggle mechanism for moving said movable cross-bars radially, said shaft being movable longitudinally in one direction to bring the links into a position substantially at a right angle to the shaft to hold said cross-bars'in outermost position and being movable in the opposite direction to draw said cross-bars inwardly, substantially as described.

In testimony whereof I have aflixed my signature.

KARL MEYER-GAUS. 

